#     练习 4 ：将上题中的元组转换为列表，修改内容之后，再根据列表生成一个元组

my_tuple = ("hello", "python", "itcast", "hello3")
my_list = list(my_tuple)
my_list[0] = "111"
my_tuple = tuple(my_list)
print(my_tuple)